Chlorophyll pigment found in chloroplast of leaves absorbs sunlight.
The plants has a technique in which they lean towards sunlight which helps them better to compete for sunlight.
Explanation:
The leaves of the plant consist of chloroplasts in which light absorbing pigment chlorophyll is found. The chloroplast consist of thylakoid where light reaction of photosynthesis takes place.
The presence of chlorophyll a in large amount would help plant better use the sunlight this amounts to increase number of chloroplast.
Leaning towards the sunlight is feature which helps them using more sunlight.
Explanation:
Distinguish chemical substances from mixtures
Key Points
Matter can be broken down into two categories: pure substances and mixtures. Pure substances are further broken down into elements and compounds. Mixtures are physically combined structures that can be separated into their original components.
A chemical substance is composed of one type of atom or molecule.
A mixture is composed of different types of atoms or molecules that are not chemically bonded.
A heterogeneous mixture is a mixture of two or more chemical substances where the various components can be visually distinguished.
A homogeneous mixture is a type of mixture in which the composition is uniform and every part of the solution has the same properties.
Various separation techniques exist in order to separate matter, including include distillation, filtration, evaporation and chromatography. Matter can be in the same phase or in two different phases for this separation to take place.
Terms
substanceA form of matter that has constant chemical composition and characteristic properties. It is composed of one type of atom or molecule.
elementA chemical substance that is made up of a particular kind of atom and cannot be broken down or transformed by a chemical reaction.
mixtureSomething that consists of diverse, non-bonded elements or molecules.
If you drop a bath bomb into water, then it will fizz because a chemical reaction is taking place.
A gallon of water weighs 8.34 pounds
This is true. Water is the solvent in aqueous solutions
